MIAMI -- Tropical Storm Olga was dissipating Thursday northwest of Jamaica, leaving 13 people dead in its wake in the Dominican Republic, Haiti and Puerto Rico.

The U.S. National Hurricane Center in Miami said in its final report Olga had degraded to tropical depression status with its center about 80 miles northwest of Kingston, Jamaica, moving west near 13 mph with 30 mph winds.

However, the report said heavy rainfall was expected in the southeastern Bahamas, eastern Cuba, Jamaica and Hispaniola.

The rare December storm, the 15th named storm of the year, formed Monday and first hit Puerto Rico, where one man was killed in a landslide caused by heavy rain. Various reports from Caribbean media said 10 others were killed in the Dominican Republic and two in Haiti, all of the deaths related to flooding.